3 years ago

Joe Mathis works as a pianist in a local restaurant. He makes $8.50 an hour.

Mathematics

1 answer:

grigory [225]3 years ago

5 0

Answer:331.5

Step-by-step explanation:

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3 years ago

5 1/2 ft equals how many inches

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2 years ago

Jasmine by 32 kiwi fruit for $16.How many kiwi can lisa buy if she has $6

zimovet [89]

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3 years ago

1/4(1/3k+9)=6 step 1- 1/3k=15 step 2- 1/3k=15 step 3- k=5 find Olgas mistake step 1 step 2 steps 3 Olga did not make a mistake

shtirl [24]

Answer:

Step 3 contains error.

Step-by-step explanation:

The given equation is :

$\dfrac{1}{4}(\dfrac{1}{3}k+9)=6$

Step 1.

Cross multiplying,

$(\dfrac{1}{3}k+9)=24$

Step 2.

Subtract 9 from both sides

$\dfrac{1}{3}k+9-9=24-9\\\\\dfrac{1}{3}k=15$

Step 3.

Cross multiplying

$k=15\times 3\\\\k=45$

So, there is an error in step 3. The correct answer should be 45.

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3 years ago